Upscaling textures on SNES emulators to improve graphics on today's displays: https://arstechnica.com/gaming/2019/04/hd-emulation-mod-makes-mode-7-snes-games-look-like-new/
Really neat approach. I've seen emulators do clever 2D smoothing, but this feels closer to 'original intent'.
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Today I learnt that the original name for DOS was QDOS, for "Quick and Dirty Operating System"! https://en.wikipedia.org/wiki/DOS#QDOS
(Seems rather unfortunate that they dropped the Q.)
Go has an elegant approach to defining example functions, which are shown in docs as `main()` with the output: https://go.dev/blog/examples
The games console market is fascinating: there's incentive to *not* provide upgraded models.
You want the guarantee that a game for $X just works on any $X purchased.
E.g. the Switch OLED has a bigger screen, and a better CPU than the original, but it's downclocked to match the original Switch's CPU.